UActorComponent::IsRenderTransformDirty

function Engine Since 4.0

#include "Components/ActorComponent.h"

Access: public Specifiers: inlineconst

Description

Returns whether this component's transform has been modified but not yet flushed to the render thread. Used internally to batch render state updates.

Caveats & Gotchas

• This is an engine-internal flag checked by the rendering pipeline during DoDeferredRenderUpdates_Concurrent — it is not a reliable signal for game logic.
• The dirty flag is cleared after the render thread receives the update, which happens asynchronously at the end of the frame.

Signature

inline bool IsRenderTransformDirty() const { return bRenderTransformDirty; }

Return Type

bool

Example

Check dirty state before forcing a render update C++

// Rarely needed in game code — example shows engine-side usage pattern
if (MyComponent->IsRenderTransformDirty())
{
	MyComponent->DoDeferredRenderUpdates_Concurrent();
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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